main.container img, .caption {
  max-width: 80%;
  margin: auto;
  height: auto;
  display: block;
}

.caption {
  margin-top:-8px;
  margin-bottom:20px;
  font-size: 80%;
}

.talk.alert-light {
  font-weight:bold;
  vertical-align:bottom;
  text-align:center
}